PROBLEM TO BE SOLVED: To provide an ophthalmic laser treatment apparatus capable of appropriately performing both suitable application of illumination light to a treatment region of an eye of a patient and suitable irradiation of a treatment laser beam to the treatment region of the eye of the patient.SOLUTION: An ophthalmic laser treatment apparatus that irradiates a treatment region of an eye of a patient with treatment light includes an irradiation optical system for irradiating an eye of the patient with treatment light, a light projecting unit for projecting illumination light to the eye of the patient, a vertical movement mechanism for vertically moving the light projecting unit relative to the eye of the patient, a horizontal movement mechanism for horizontally moving the light projecting unit relative to the eye of the patient, first detection means for detecting a movement position in a vertical direction of the light projecting unit with respect to a first reference point, second detection means for detecting a movement position in a horizontal direction of the light projecting unit with respect to a second reference point, and interference estimation means for estimating an interference state of the light projecting unit with a light flux of the treatment light by combining detection results from the first detection means and the second detection means.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】 患者眼の治療部位への照明光の好適な照明と、患者眼の治療部位への治療レーザ光の好適な照射とを共に適切に実行することが可能な眼科用レーザ治療装置を提供する。【解決手段】 患者眼の治療部位に治療光を照射する眼科用レーザ治療装置は、患者眼に治療光を照射する照射光学系と、患者眼に照明光を投光する投光部と、患者眼に対して投光部を上下動させる上下動機構と、患者眼に対して投光部を左右動させる左右動機構と、第1基準地点に対する投光部の上下方向の移動位置を検出する第1検出手段と、第2基準地点に対する投光部の左右方向の移動位置を検出する第2検出手段と、第1検出手段と第2検出手段の検出結果を組み合わせて、治療光の光束に対する投光部の干渉状態を推測する干渉推測手段と、を備えたことを特徴とする。【選択図】 図1
